Focus On...What does a hummingbird eat?Fluff feeding Tiny a piece of plant material. I think it's part of an Arbutus blossom.ost people think that hummingbirds only drink nectar. Although nectar is a valuable item in their diet, they actually eat a variety M of insects and plant material. 32 Hummingbirds Up Close Magazine Hummingbirds Up Close Magazine 33